Blood glucose level measuring device



FIG. 1 is a top perspective view of the blood glucose level measuring device;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a top view thereof;

FIG. 4 is a bottom view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a front view thereof; and,

FIG. 8 is a is a rear view thereof.

The broken lines in the FIGS. 4 and 5 are included for the purpose of illustrating portions of the blood glucose level measuring device that form no part of the claimed design. 

The ornamental design for a blood glucose level measuring device, as shown and described. 